Re: Upgraded to Red Hat 7.1, now my DB is toast?

Major version changes of Postgres require a dump (to text) of the database
and a restore from that file. You will need to reinstall the old version of
Postgres and dump the database using pg_dumpall, then upgrade to 7.1 and
restore from the dump.

Postgres requires dumps/restores any time there is a significant version
change:

6.5.x ->7.0.x requires a dump/restore
7.0.0 -> 7.0.2 does not require a dump
7.0.x->7.1.x requires a dump/restore

--rob

----- Original Message -----
From: "Eric Walstad" <eric(at)walstads(dot)net>
To: "J. J. Franzen" <jfranzen(at)cinenet(dot)net>
Cc: <pgsql-novice(at)postgresql(dot)org>
Sent: Wednesday, June 06, 2001 11:36 AM
Subject: Re: Upgraded to Red Hat 7.1, now my DB is toast?

> Hi JJ
>
> When I start my postmaster without specifying the -D option I get the
> same error. Here's how I start mine (as user "postgres"):
>
> postmaster -D /usr/local/pgsql/data -i -d 2 -o "-d 2" >>
> /path/to/log/file.log 2>&1 &
>
> That's all on one line, of course. The -D option specifies the location
> of the data directory your postmaster is complaining about.
>
> Hope that helps,
>
> Eric.
>
> J. J. Franzen wrote:
>
> > I had PGSQL up and running fine on RH6.2 (whatever version comes with
> > RH6.2). For some fool reason, I thought I'd upgrade to 7.1. While
> > reconfiguring my system after having almost all of my settings
> > mysteriously vanish, I finally get to starting up postmaster and get
> > this error:
> >
> > /usr/bin/postmaster does not find the database system. Expected to find
> > it in the PGDATA directory "/var/lib/pgsql/data", but unable to open
> > file with pathname "/var/lib/pgsql/data/base/template1/pg_class".
> >
> > No data directory -- can't proceed.
> >
> > Ack. The /var/lib/pgsql/data/base does exist but there is no template1
> > dir... Does this mean that DBs made with 6.whatever are incompatible
> > with 7.whatever? And if so, is there a way to recover/upgrade/save the
> > db I already have? Thanks in advance for any advice. Later,
> >
> > J. J. Franzen
> >
> >
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>
>